Transmission
The movement or transfer of electric energy over an interconnected group of lines and associated equipment between points of supply and points at which it is transformed for delivery to consumers or is delivered to other electric systems. Transmission is considered to end when the energy is transformed for distribution to the consumer.
A pipeline that conveys gas from a region where it is produced to a region where it is to be distributed.
The transport of large quantities of gas at high pressures, often through national or regional transmission systems. From the latter, gas is transferred into local distribution centres, for supply to customers, at lower pressures.
Transporting bulk power over long distances.